Setting up the Linux PPTP 1.0.2 client (and PPP 2.3.5) with Windows NT PPTP Server

Home | Downloads | Setting up the PPTP Server | PPTP Server TODO PPTP Server ChangeLog

CONTENTS

About the systems
PPP chap-secrets file
Setting up PPP debugging
Launching PPTP
Errors
Testing


About the systems

This document assumes the following:

  • remote machine name = orge
  • domain remote machine belongs to = gnoll
  • username on remote machine = billybob
  • password for billybob = bobbybill
We want to connect our local machine to the remote machine using PPTP. The remote machine is a Windows NT box while our local machine is a Linux box.

PPP chap-secrets file

Find the chap-secrets file which should be in /etc/ppp/. This file should look like this:

# chap-secrets
# clientserversecretIP adresses
gnoll\\billyboborgebobbybill

Setting up PPP debugging

PPP debugging is handled by syslogd. To setup debugging open syslog.conf which should be found in /etc/ and add the following entry:

daemon.debug /var/log/pppd.log

Launching PPTP

The following command is issued on the linux box to connect to the remote NT machine.

pptp orge debug name gnoll\\billybob remotename orge

Errors

E=691
This error occurs when you supply an incorrect username/password to the remote NT machine. Check the chap-secrets file and the command line where PPTP is launched.

Testing

  • run 'ifconfig' and check that a ppp0 interface exists
  • find P-t-P: xxx.xxx.xxx.xxx from the output of ifconfig
  • run 'netstat -i' and record the RX-OK and TX-OK values for ppp0
  • type 'ping xxx.xxx.xxx.xxx'
  • run 'netstat -i' again and see if the values for RX and TX increased.. if yes then it would appear to be working ok....... in theory anyway.
Email: Matthew Ramsay



Moreton Bay (Australia)
Phone: 617 32791822 Fax: 32791820

Moreton Bay (USA)
Phone: 831 656 9100 Fax: 656 9200

Last Updated: 6 April, 1999